GN 3663 Torque Limiting Knurled Knobs Aluminum, with Steel Threaded Stud


GN 3663 Aluminum Torque Limiting Knurled Knobs, with Steel Threaded Stud

Product description


Torque limiting knurled knobs GN 3663 are used when the manually applied torque is to be limited.

When turned clockwise, the torque mechanism of the knurled knob triggers an "over-engagement" as soon as the specified torque is reached. When tightening, this ensures that the maximum permissible torque is not exceeded. When turned counter-clockwise, loosening the knob, the mechanical system is still locked so the knob can be released. Torque necessary for release will always be transmitted properly.


Knob body
Aluminum, black anodized finish

Torque mechanism
Steel, hardened

Other components
Steel, blackened finish

Plastic, light gray


On request

Inch size threads and bores
Other dimensions of bore inserts, threaded
inserts or threaded studs as per GN 300
Other inserts with special threaded studs as per GN 306
Other torques
Torque limiting turning counter-clockwise or, turning counter-clockwise and clockwise

Technical drawing

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GN 3663 Aluminum Torque Limiting Knurled Knobs, with Steel Threaded Stud sketch

Part Options / Table

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Dimensions in: Inch (change to Metric)
d1d4Length ld5d6h1h2Torque ±10 %
in Nm
1.06M 40.470.630.790.981.260.390.751.340.330.711.5
1.06M 50.470.630.790.981.260.390.751.340.330.711.5
1.34M 50.470.630.790.981.260.390.831.440.3311.52.2
1.34M 60.470.630.790.981.260.390.831.440.3311.52.2
1.65M 80.630.790.981.261.570.531.061.690.4322.53.2
1.65M 100.790.981.261.571.970.531.061.690.4322.53.2
2.05M 100.981.261.571.972.480.751.262.130.612.534
2.05M 120.981.261.571.972.480.751.262.130.612.534
2.44M 100.981.261.571.972.480.751.302.130.61345.5
2.44M 120.981.261.571.972.480.751.302.130.61345.5

Build & Price

3D Product Configurator
Handle diameter d1
Thread d4
Length l
Torque in Nm

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Total US Dollars (net)
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Please note our quantity discounts (US Dollars).
≥ 500$54.23
Prop 65: Not compliant
Cancer and Reproductive Harm -
RoHS: Compliant
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Weight: 0.094 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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